This patch adds recently added constant blinding helpers into the
arm64 eBPF JIT. In the bpf_int_jit_compile() path, requirements are
to utilize bpf_jit_blind_constants()/bpf_jit_prog_release_other()
pair for rewriting the program into a blinded one, and to map the
BPF_REG_AX register to a CPU register. The mapping is on x9.
Signed-off-by: NDaniel Borkmann <daniel@iogearbox.net>
Acked-by: NZi Shen Lim <zlim.lnx@gmail.com>
Acked-by: NYang Shi <yang.shi@linaro.org>
Tested-by: NYang Shi <yang.shi@linaro.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>